Webwatch URL monitoring
Webwatch checks HTTP/HTTPS URLs and sends mail if there's a problem.

If you have one or more web apps running, you want to be the first one to know if one of them is down.

Webwatch is a command line tool that checks webapps and send email if one of them has a problem. Configuration is easy: Just start webwatch with a json config file, like so:

        user@wombat ~ # cat path/to/config.json
        {
            "urls": [
                "http://www.vilsmeier-consulting.de",
                "https://wombat-app.io/app/login",
                ...more urls
            ],
            "checks": "5m",
            "reports": "12h",
            "limit": "1h",
            "mail" : {
                "subject" : "[Webwatch] WOMBAT",
                "from" : "info@wombat-app.io",
                "to" : "myself@gmx.de",
                "host" : "smtp.gmx.de",
                "username" : "example_username_00012",
                "password" : "example_password_00012"
            }
        }
        user@wombat ~ # webwatch -config path/to/config.json
        

Webwatch will check the configured URLs in a 5 minute interval (see checks field). If one of the URLs changes from 'reachable' to 'unreachable' or vice versa, Webwatch will send a mail to myself@gmx.de (see mail configuration). Additionally, Webwatch will send a report mail after 12 hours (see reports field), even if no URL changed. No matter how often the URLs change (or not), Webwatch will not exceed the rate-limit of 1 mail per hour (see limit field)

Webwatch is written in Go, so it will run an any system supported by Go. Check it out on github: https://github.com/cvilsmeier/webwatch.